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首页> 外文期刊>Journal of Materials Engineering and Performance >Manufacturing and recycling of A380Al/SiC{sub}(p) composites
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Manufacturing and recycling of A380Al/SiC{sub}(p) composites

机译：A380Al / SiC {sub}（p）复合材料的制造和回收

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摘要

The melting and degassing equipment and the process used in the production of particulate aluminum matrix composites is proposed. Also presented is the successful preparation of A380/80μm SiC particulate aluminum alloy composites, where SiCparticulate was evenly dispersed throughout an aluminum alloy matrix and a die cast chain wheel had very little porosity. In addition, recycling equipment for particulate aluminum matrix composites was designed. The old material and new material of thesecomposites are mixed in ratios of 1:1,2:1, and 3:1 by weight. After the first, second, and third recyclings, it was found that the amount of porosity and inclusion is much less for recycled composites. In addition, from composition analysis, it was foundthat the Si content increases with an increase in the amount of old materials and recycling times. From tensile strength tests, it was found that tensile strength and elongation are the same for new materials and composites with old material to newmaterial weight ratios of 1:1 and 2:1 for the first to the third recyclings. However, tensile strength and elongation decrease for composites with an old material to new material weight ratio of 3:1 for the first to the third recyclings, in particular for material of the third recycling. If Si was added before the recycling process, though the formation of Al{sub}3C{sub}4 and Si crystal could he constrained, it would have no significant effect on the increase of elongation.
机译：提出了用于生产铝颗粒复合材料的熔融和脱气设备及方法。还介绍了成功制备A380 /80μmSiC颗粒铝合金复合材料的方法，其中SiC颗粒均匀地分散在整个铝合金基体中，压铸链轮的孔隙率很小。此外，还设计了用于颗粒状铝基复合材料的回收设备。这些复合材料的旧材料和新材料按重量比为1：1、2：1和3：1混合。在第一次，第二次和第三次回收之后，发现回收的复合材料的孔隙率和夹杂物的数量要少得多。另外，从组成分析发现，Si含量随着旧材料的数量和回收时间的增加而增加。从抗拉强度测试中发现，在第一次到第三次循环中，新材料和复合材料的拉伸强度和伸长率相同，旧材料与新材料的重量比为1：1和2：1。然而，对于第一至第三次循环，特别是对于第三次循环的材料，具有旧材料与新材料的重量比为3：1的复合材料的拉伸强度和伸长率降低。如果在回收过程之前添加Si，尽管可以限制Al {sub} 3C {sub} 4和Si晶体的形成，但对伸长率的增加没有显着影响。

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